EP4160783B1 - Bloc-batterie - Google Patents

Bloc-batterie Download PDF

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Publication number
EP4160783B1
EP4160783B1 EP22198091.5A EP22198091A EP4160783B1 EP 4160783 B1 EP4160783 B1 EP 4160783B1 EP 22198091 A EP22198091 A EP 22198091A EP 4160783 B1 EP4160783 B1 EP 4160783B1
Authority
EP
European Patent Office
Prior art keywords
connecting member
partition wall
battery pack
battery
electronic component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22198091.5A
Other languages
German (de)
English (en)
Other versions
EP4160783A1 (fr
Inventor
Jin Su Han
Min Song Kang
Ju Yong Park
Sei Hoon Cho
Ji Woong Kim
Byeong Jun Pak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SK On Co Ltd
Original Assignee
SK On Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SK On Co Ltd filed Critical SK On Co Ltd
Publication of EP4160783A1 publication Critical patent/EP4160783A1/fr
Application granted granted Critical
Publication of EP4160783B1 publication Critical patent/EP4160783B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/526—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present disclosure relates to technology related to a battery pack.
  • a secondary battery is a battery which may be charged and discharged unlike a primary battery which is unable to be charged, and may be applied not only to a portable device, but also to an electric vehicle (EV), a hybrid electric vehicle (HEV) or the like, driven by an electric driving source.
  • Types of secondary batteries currently widely used may include a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery and the like.
  • An operation voltage of a unit cell of the secondary battery that is, a unit cell of the battery, may be about 2.5 V to 4.6 V. Therefore, when a higher output voltage is required, the plurality of battery cells may be connected in series to each other to form a battery pack.
  • the plurality of battery cells may be connected to each other in parallel to form the battery pack, based on a charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set based on the required output voltage or charge/discharge capacity.
  • WO 2020/177606 A1 discloses a battery pack, comprising: a battery module comprising multiple battery units arranged in an array; a battery pack case comprising cross beams and longitudinal beams defining multiple module accommodation spaces, thermal insulation layers being provided at the cross beam and the longitudinal beam close to an accessory accommodation space, the accessory accommodation space accommodating a battery management system and a high-voltage electrical equipment box; and a lower cover thermal insulation layer provided at a side of the battery pack case away from the battery module.
  • the projection of the lower cover thermal insulation layer on a plane in which the battery module is located covers at least the outermost battery units at four sides of the battery module.
  • the battery pack has a thermally insulated case structure, thereby enhancing thermal insulation performance while reducing thermal insulation costs.
  • a secondary battery pack which includes: a secondary battery module having a plurality of battery cells and a plurality of cooling fins; a first structure formed in a first (one) side cover shape which is mounted on one side of the secondary battery module and includes a cooling channel and a bracket mounted in a vehicle to be fixed thereto; and a second structure which is formed in a second side cover shape mounted on the other side of the secondary battery module and includes a printed circuit board.
  • Various electronic components such as various battery modules, a battery management system (BMS) and a power relay assembly (PRA) may be positioned in the battery pack, and these electronic components may be connected to each other by electronic wiring.
  • the electronic components may be connected to each other by the electronic wiring such as a wiring harness or a bus bar, which may transmit electric power or an electrical signal.
  • a general battery pack may include a low voltage (LV) harness having a large number of wires in order to obtain information on a plurality of battery modules included in the battery pack.
  • the LV harness may have a complicated shape and may occupy a relatively large amount of space.
  • the LV harness in a complicated arrangement may act as a factor which may aggravate the event, such as blocking a gas flow path.
  • a battery pack includes: a pack housing having an internal space; at least one cell stack body accommodated in the internal space of the pack housing; at least one electronic component accommodated in the internal space of the pack housing; a connecting member electrically connected to at least one of the at least one cell stack body and the at least one electronic component; and a partition wall partitioning the internal space and accommodating at least a portion of the connecting member
  • the partition wall includes a void therein, and the connecting member may be accommodated in the void.
  • the connecting member includes a first connecting member connected to the at least one electronic component, a second connecting member connected to at least one cell stack body and at least one electronic component, and a third connecting member connected to at least one cell stack body and at least one electronic component.
  • the partition wall includes a void accomodating a first connecting member, and a recess accomodating a second connecting member and a third connecting member.
  • the partition wall includes an upper surface, a side surface extended from each of two ends of the upper surface, and a recessed surface inward from the side surface (1132a) defining a portion of the recess.
  • the partition wall may include a lower frame and an upper frame, coupled to the lower frame, and the void may be formed between the lower frame and the upper frame.
  • the partition wall includes the recess in a side surface.
  • the connecting member may include a conductive member and an insulating member surrounding the conductive member.
  • the connecting member may be a bus bar connected to an input/output port of the at least one cell stack body.
  • the at least one electronic component may be a battery management system (BMS), and the connecting member may be a low voltage (LV) harness connected to the battery management system.
  • BMS battery management system
  • LV low voltage
  • the partition wall includes a void besides the recess, and the void and the recess may be spatially separated from each other.
  • an X-direction, a Y-direction and a Z-direction may indicate a direction parallel to an X axis, a direction parallel to a Y axis, and a direction parallel to a Z axis, each illustrated in the drawings.
  • the X-direction may be a concept including both a +X axis direction and a -X axis direction, which may be equally applied to the Y-direction and the Z-direction.
  • a case in which two directions (or axes) are parallel to or perpendicular to each other may also include a case in which the two directions (or axes) are substantially parallel or substantially parallel to each other.
  • a case in which the first axis and the second axis are perpendicular to each other may indicate a case in which the first axis and the second axis form an angle of 90 degrees or an angle close to 90 degrees.
  • FIG. 1 illustrates a battery pack 1000 according to an exemplary embodiment.
  • the battery pack 1000 in an exemplary embodiment may include a pack housing 1100 and a plurality of cell stack bodies 1200 accommodated in the pack housing 1100.
  • the pack housing 1100 may include a lower plate 1110, a side plate 1120 disposed on an edge of the lower plate 1110, a partition wall 1130 partitioning a space surrounded by the side plate 1120 and an upper plate 1150 disposed on the cell stack bodies 1200.
  • the upper plate 1150 and/or the lower plate 1110 may function as a cooling plate.
  • the lower plate 1110 and/or the upper plate 1150 may be in direct or indirect contact with the cell stack bodies 1200 to dissipate heat generated in the cell stack bodies 1200.
  • at least one of the lower plate 1110 and the upper plate 1150 may include a flow path through which a refrigerant flows.
  • An internal space of the pack housing 1100 may be divided into several compartments by the partition wall 1130, and at least one cell stack body 1200 may be disposed in each compartment.
  • FIG. 1 illustrates that one cell stack body 1200 is disposed in one compartment, which is only an example, and two or more cell stack bodies 1200 may be disposed therein.
  • FIG. 1 illustrates that four electronic components 1300 are disposed in the pack housing 1100, which is only an example, and the number or positions of the electronic components 1300 in another exemplary embodiment may differ from those in the described exemplary embodiment.
  • At least one electronic component 1300 is disposed in the pack housing 1100.
  • the electronic component 1300 may include a battery management system (BMS), a power relay assembly (PRA), a electric power management device, a battery charge/discharge device, and an input port of the battery pack 1000, an output port of the battery pack 1000, a device for sensing a battery state (e.g. voltage, lifespan, temperature, pressure or the like), a device for battery safety, a electric power cut-off system, a device for slow or fast charging, etc.
  • a device not explicitly mentioned in the present disclosure may be included in the electronic component 1300 of the present disclosure as long as the device is an electronic device disposed in the battery pack 1000.
  • the battery pack 1000 may include a connecting member 1400 electrically connecting two or more of the cell stack bodies 1200 or the electronic components 1300 to each other.
  • the cell stack body 1200 may be electrically connected to another cell stack body 1200 in the battery pack 1000 by the connecting member 1400.
  • the electronic component 1300 may be electrically connected to another electronic component 1300 in the battery pack 1000 by the connecting member 1400.
  • the cell stack body 1200 may be electrically connected to the electronic component 1300 in the battery pack 1000 by the connecting member 1400.
  • the connecting member 1400 may electrically connect at least two different components in the battery pack 1000 to each other.
  • the connecting member 1400 may be a wiring harness or a bus bar.
  • the connecting member 1400 may be an electronic wiring for high voltage or an electronic wiring for low voltage.
  • a high current may flow between the cell stack bodies 1200, and the connecting member 1400 connecting the cell stack bodies 1200 to each other may thus be the electronic wiring for high voltage.
  • the connecting member 1400 connected to the corresponding electronic component 1300 may be the electronic wiring for high voltage.
  • the connecting member 1400 electrically connecting the battery management system (BMS) and the cell stack body 1200 to each other may be the electronic wiring for low voltage.
  • the connecting member 1400 may be a bus bar connected to the input/output port (or port block) of the cell stack body 1200.
  • the connecting member 1400 may be a low voltage (LV) harness connected to the battery management system (BMS) .
  • BMS battery management system
  • FIG. 2 illustrates the component in the battery pack 1000 and the connecting member connected to the components.
  • the connecting member 1400 may electrically connect the electronic component 1300 and the cell stack body 1200 to each other, or electrically connect the electronic components 1300 to each other or the cell stack bodies 1200 to each other.
  • FIG. 2 illustrates, as an example of the connecting member 1400, a first connecting member 1401 connecting a first electronic component 1301 and a third electronic component 1303 to each other, a second connecting member 1402 connecting the first electronic component 1301 and the cell stack body 1200 to each other, a third connecting member 1403 connecting a second electronic component 1302 and the cell stack body 1200 to each other, a fourth connecting member 1404 connecting the cell stack bodies 1200 to each other, and a fifth connecting member 1405 connecting the third electronic component 1303 and the cell stack body 1200 to each other.
  • the first to fifth connecting members 1401, 1402, 1403, 1404 and 1405 illustrated in FIG. 2 are only examples for convenience of description, and an exemplary embodiment of the present disclosure is not limited thereto. That is, the battery pack 1000 may include another type connecting member or an additional connecting member different from the first to fifth connecting members 1401, 1402, 1403, 1404 and 1405 illustrated in FIG. 2 .
  • the pack housing 1100 may include the partition wall 1130 and 1140 , partitioning the internal space of the pack housing 1100.
  • the pack housing 1100 may include a first partition wall 1130 passing through the internal space in the X-direction.
  • the pack housing 1100 may include a second partition wall 1140 passing through the internal space in the Z-direction.
  • the partition walls 1130 and 1140 illustrated in FIGS. 1 and 2 are only examples, and an exemplary embodiment of the present disclosure is not limited thereto.
  • the connecting member 1400 may be accommodated in the partition wall 1130 or 1140.
  • the partition wall 1130 or 1140 may include an accommodation portion accommodating the connecting member 1400.
  • the accommodation portion may be an internal space of the partition wall 1130 or 1140.
  • the accommodation portion may be a recess formed in a side surface of the partition wall 1130 or 1140.
  • the connecting member 1400 may be accommodated in the partition wall 1130 or 1140, and an internal space of the battery pack 1000 may thus be efficiently utilized.
  • a conventional battery pack may have insufficient internal space, and a connecting member such as the wiring harness or a bus bar for high voltage may thus be positioned in a space between a partition wall and an upper plate.
  • the connecting member 1400 may be accommodated in the partition wall 1130 or 1140, and the partition wall 1130 or 1140 may be extended relatively close to the upper plate 1150 from the lower plate 1110.
  • the partition wall 1130 or 1140 is extended relatively close to the upper plate 1150 from the lower plate 1110, it is possible to suppress propagation of flame, gas or heat between spaces partitioned by the partition wall 1130 or 1140, which may delay or prevent thermal runaway of the battery pack 1000.
  • a general battery pack may include a plurality of battery modules, and the LV harness having a large number of wires in order to obtain information on the plurality of modules may have a complicated shape and occupy a relatively large amount of space.
  • the LV harness in a complicated arrangement may act as a factor which may aggravate the event, such as blocking a gas flow path.
  • the LV harness may be accommodated in the partition wall 1130 or 1140, thereby preventing the above problem.
  • FIG. 3 illustrates the connecting member 1400 accommodated in the partition wall 1130 in an exemplary embodiment.
  • FIG. 3 illustrates an example of a cross section of the first partition wall 1130 taken along line I-I' in FIG. 2 .
  • the first connecting member 1401 may be accommodated in the first partition wall 1130.
  • the first partition wall 1130 may include a void 1131 therein, and the first connecting member 1401 may be accommodated in the void 1131.
  • the first partition wall 1130 may have a shape of a hollow square beam, and the first connecting member 1401 may be disposed in the square beam.
  • the first connecting member 1401 may be extended in the first partition wall 1130 in a length direction (i.e., X-direction) of the first partition wall 1130, and let out from each of one and the other ends of the first partition wall 1130 to be connected to the electronic component 1300.
  • FIG. 2 illustrates that the first connecting member 1401 connects the first electronic component 1301 and the third electronic component 1303 to each other, which is only an example.
  • one end of the first connecting member 1401 may be connected to the first electronic component 1301, and the other end of the first connecting member 1401 may be connected to the cell stack body 1200.
  • FIG. 4 illustrates a method of assembling the connecting member 1400 in the partition wall 1130.
  • the first partition wall 1130 may include a lower frame 1130L and an upper frame 1130U.
  • the upper frame 1130U may be coupled to the lower frame 1130L, and the first connecting member 1401 may thus be accommodated in the first partition wall 1130.
  • the lower frame 1130L and the upper frame 1130U may be welded to each other or coupled to each other by using mechanical fastening means such as bolt-nut coupling.
  • FIG. 5 illustrates the connecting member accommodated in the recess of the partition wall
  • FIG. 5 illustrates another example of a cross section of the first partition wall 1130 taken along line I-I' in FIG. 2 .
  • the first partition wall 1130 in an exemplary embodiment may include a recess 1132 accommodating the first connecting member 1401.
  • the first partition wall 1130 includes a side surface 1132a extended from each of two ends of an upper surface 1130a to the lower plate 1110, and a recessed surface 1132b inward from the side surface 1132a may be defined as a portion of the recess 1132.
  • FIGS. 6 and 7 each illustrate that the connecting member 1400 is accommodated in each of two side surfaces of the partition wall 1130 according to an exemplary embodiment.
  • FIG. 6 schematically illustrates the first partition wall 1130, the second connecting member 1402, and the third connecting member 1403, based on a cross section taken along line II-II' of the battery pack 1000 in FIG. 2 .
  • the second connecting member 1402 and the third connecting member 1403 are accommodated in the first partition wall 1130.
  • the first partition wall 1130 includes a side surface 1133a extended from each of two ends of the upper surface 1130a to the lower plate 1110, and a recessed surface 1133b inward from the side surface 1133a to form a recess 1133.
  • the recess 1133 may have a depth corresponding to a thickness of the connecting member 1400.
  • an outer surface of the connecting member 1400 may coincide with or approximately coincide with the side surface 1133a of the first partition wall 1130.
  • the connecting member 1400 may include a conductive member 1411 and an insulating member 1412 surrounding at least a portion of the conductive member 1411 to insulate the first partition wall 1130 and the conductive member 1411 from each other.
  • the connecting member 1400 may be mounted in the first partition wall 1130 by using an adhesive member 1500.
  • the second connecting member 1402 and the third connecting member 1403 may be connected to the electronic component 1300 and the cell stack body 1200, which is only an example.
  • the second connecting member 1402 or the third connecting member 1403 may connect the electronic components 1300 to each other or the cell stack bodies 1200 to each other.
  • FIG. 8 illustrates the connecting member 1400 accommodated in the partition wall 1130 in an exemplary embodiment.
  • FIG. 8 illustrates an example of a cross section of the first partition wall 1130 taken along line II-II' in FIG. 2 .
  • the partition wall may include the accommodation portions respectively accommodating two or more connecting members.
  • the respective accommodation portions may be spatially separated from each other.
  • the first partition wall 1130 includes the void 1131 therein and the recess 1133 formed in the side surface.
  • the first connecting member 1401 are accommodated in the void 1131 in the first partition wall, and the second connecting member 1402 and the third connecting member 1403 are accommodated in the recesses 1133.
  • the void 1131 and the recess 1133 are spatially separated from each other.
  • FIGS. 6 through 8 illustrate that the recess 1133 accommodating the connecting member 1400 is disposed in each of the two side surfaces of the first partition wall 1130, which is only an example.
  • the recess 1133 may be disposed only in one side surface of the first partition wall 1130.
  • FIGS. 3 through 8 illustrate the connecting member 1400 accommodated in the first partition wall 1130, which is for convenience of description, and a structure included in the pack housing 1100 in addition to the first partition wall 1130 may accommodate the connecting member 1400.
  • the connecting member 1400 may also be partially accommodated in the second partition wall 1140 or the side frame 1120. That is, the second partition wall 1140 or the side frame 1120 may include an accommodation portion accommodating at least a portion of the connecting member 1400.
  • the accommodation portion may be a void formed in the second partition wall or the side frame or a recess formed in an outer side surface thereof.
  • a portion of the fourth connecting member 1404 may be accommodated in the second partition wall 1140, and a portion of the fifth connecting member 1405 may be accommodated in the side frame 1120. That is, the fourth connecting member 1404 and the second partition wall 1140 may each be disposed in a shape similar to that of FIG. 3 , 5 or 6 , based on a cross section taken along line III-III' of FIG. 2 . In addition, the fifth connecting member 1405 and the side frame 1120 may each have a shape similar to that of FIG. 3 , 5 or 6 , based on a cross section taken along line IV-IV' of FIG. 2 .
  • the battery pack may have the efficient internal space by effectively arranging the electronic wiring such as the wiring harness and the bus bar therein.
  • the battery pack may have the efficient internal space by effectively arranging the electronic wiring such as the wiring harness and the bus bar therein.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)

Claims (8)

  1. Un bloc batterie (1000) comprenant :
    un boîtier de bloc (1100) ayant un espace interne ;
    au moins un corps d'empilement de cellules (1200) placé dans l'espace interne du boîtier de bloc (1100) ;
    au moins un composant électronique (1300) placé dans l'espace interne du boîtier de bloc (1100) ;
    un élément de connexion (1400) connecté électriquement à au moins l'un de l'au moins un corps d'empilement de cellules (1200) et de l'au moins un composant électronique (1300) ; et
    une paroi de séparation (1130) séparant l'espace interne et plaçant au moins une portion de l'élément de connexion (1400),
    dans lequel l'élément de connexion (1400) inclut un premier élément de connexion (1401) connecté à l'au moins un composant électronique (1300), un deuxième élément de connexion (1402) connecté à au moins un corps d'empilement de cellules (1200) et à au moins un composant électronique (1300), et un troisième élément de connexion (1403) connecté à au moins un corps d'empilement de cellules (1200) et à au moins un composant électronique (1300),
    dans lequel la paroi de séparation (1130) inclut un vide (1131) plaçant un premier élément de connexion (1401), et un évidement (1133) plaçant un deuxième élément de connexion (1402) et un troisième élément de connexion (1403), et la paroi de séparation (1130) inclut une surface supérieure (1130a), une surface latérale (1132a) étendue depuis chacune de deux extrémités de la surface supérieure (1130a), et une surface évidée (1132b) vers l'intérieur depuis la surface latérale (1132a) définissant une portion de l'évidement (1132).
  2. Le bloc batterie (1000) selon la revendication 1, dans lequel le vide (1131) est formé à l'intérieur de la paroi de séparation (1130).
  3. Le bloc batterie (1000) selon la revendication 2, dans lequel la paroi de séparation (1130) inclut un cadre inférieur (1130L) et un cadre supérieur (1130U), couplé au cadre inférieur (1130L), et le vide (1131) est formé entre le cadre inférieur (1130L) et le cadre supérieur (1130U).
  4. Le bloc batterie (1000) selon l'une quelconque des revendications précédentes 1, dans lequel l'évidement (1132) est formé dans une surface latérale de la paroi de séparation (1130).
  5. Le bloc batterie (1000) selon l'une quelconque des revendications précédentes 1, dans lequel l'élément de connexion (1400) inclut un élément conducteur (1411) et un élément isolant (1412) entourant l'élément conducteur (1411).
  6. Le bloc batterie (1000) selon l'une quelconque des revendications précédentes 1, dans lequel l'élément de connexion (1400) est une barre omnibus connectée à un port d'entrée/sortie de l'au moins un corps d'empilement de cellules (1200).
  7. Le bloc batterie (1000) selon l'une quelconque des revendications précédentes 1, dans lequel l'au moins un composant électronique (1300) est un système de gestion de batterie (BMS), et l'élément de connexion (1400) est un faisceau de voltage bas (LV) connecté au système de gestion de batterie.
  8. Le bloc batterie (1000) selon la revendication 1, dans lequel le vide (1131) et l'évidement (1133) sont spatialement séparés l'un de l'autre.
EP22198091.5A 2021-09-30 2022-09-27 Bloc-batterie Active EP4160783B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020210129489A KR20230046464A (ko) 2021-09-30 2021-09-30 배터리 팩

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EP4160783A1 EP4160783A1 (fr) 2023-04-05
EP4160783B1 true EP4160783B1 (fr) 2025-01-01

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EP (1) EP4160783B1 (fr)
KR (1) KR20230046464A (fr)
CN (1) CN115882133A (fr)

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Publication number Priority date Publication date Assignee Title
KR20240068416A (ko) * 2022-11-10 2024-05-17 현대자동차주식회사 차량의 배터리팩
JP2025537978A (ja) * 2022-12-02 2025-11-20 エルジー エナジー ソリューション リミテッド バッテリーパックおよびその製造方法
KR102711348B1 (ko) * 2023-11-02 2024-09-30 덕양산업 주식회사 개선된 공간 활용성과 강화된 강성을 구비하는 배터리 팩
CN222394967U (zh) * 2024-04-23 2025-01-24 惠州亿纬锂能股份有限公司 一种电池包及电子设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2959606B1 (fr) * 2010-04-28 2012-12-28 Michelin Soc Tech Coffre a batterie compartimente pour vehicule electrique ou hybride.
FR2963485B1 (fr) * 2010-07-29 2013-03-22 Commissariat Energie Atomique Batterie d'accumulateurs a conception et montage facilites
WO2012148100A2 (fr) * 2011-04-26 2012-11-01 주식회사 엘지화학 Nouvelle structure de barre omnibus, et module de batterie la comprenant
KR102292303B1 (ko) * 2016-06-17 2021-08-20 에스케이이노베이션 주식회사 이차 전지 팩
KR102270234B1 (ko) * 2017-12-12 2021-06-25 주식회사 엘지에너지솔루션 크로스 빔을 내장한 배터리 모듈 및 이를 포함하는 배터리 팩
EP3937295A4 (fr) * 2019-03-05 2023-07-19 Aiways Automobile Co., Ltd Bloc-batterie

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EP4160783A1 (fr) 2023-04-05
KR20230046464A (ko) 2023-04-06
US20230102065A1 (en) 2023-03-30
CN115882133A (zh) 2023-03-31

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